Low mass flow waste fuel incinerator

A low mass flow incineration system for combusting waste fuel and extracting heat energy therefrom, comprising;

• incinerator means for consuming waste fuel by combustion, a source of waste fuel, said incinerator means including fuel inlet means connecting said source of fuel with said incinerator means, exhaust conduit means connected with said incinerator means for transmitting exhaust products therefrom, a source of primary air for supporting combustion of said waste fuel in said incinerator means, primary air inlet means for transmitting said primary air to said incinerator means, heat exchanger means for transferring heat energy from said exhaust products to a second medium, said exhaust conduit means including regenerative branch means connecting said incinerator means to said heat exchanger means, said incinerator means including coolant inlet means for supplying coolant medium to said incinerator means for reducing the temperature of said exhaust products during the process of combustion, inlet conduit means for supplying said second medium to said heat exchanger means, outlet conduit means for transmitting said second medium from said heat exchanger means, coolant supply conduit means connecting said outlet conduit means with said coolant inlet means for supplying said second medium to said incinerator means subsequent to passage of said second medium through said heat exchanger means, ambient air supply conduit means for supplying ambient air to said coolant inlet means, cooling fluid control means for controlling the flow of cooling fluid to said coolant inlet means and for selectively regulating the proportions of ambient air to said second medium reaching said coolant inlet means, said cooling fluid control means including valve means for selectively mixing said ambient air with said second medium or blocking the flow of either of said ambient air or said second medium to said coolant inlet means.